NEXT GENERATION GRAVITY MISSIONS: STUDYING THE POSSIBILITIES OF MULTIPLE CONSTELLATION

A. I. Filetkin; Филеткин А. И.; A. S. Zhamkov; Жамков А. С.; S. V. Ayukov; Аюков С. В.; V. K. Milyukov; Милюков В. К.

doi:10.31857/S0004629923110063

NEXT GENERATION GRAVITY MISSIONS: STUDYING THE POSSIBILITIES OF MULTIPLE CONSTELLATION

Authors: Filetkin A.I.¹^,2, Zhamkov A.S.¹, Ayukov S.V.¹, Milyukov V.K.¹
Affiliations:
1. Sternberg Astronomical Institute, Lomonosov Moscow State University
2. Faculty of Physics, Lomonosov Moscow State University
Issue: Vol 100, No 11 (2023)
Pages: 1033-1045
Section: Articles
URL: https://ruspoj.com/0004-6299/article/view/647598
DOI: https://doi.org/10.31857/S0004629923110063
EDN: https://elibrary.ru/HZYXDC
ID: 647598

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Abstract

We study potential possibilities of space constellation consisting of two pairs of spacecraft moving in different orbits, the so-called next generation gravity missions, aimed at increasing the spatial and temporal resolution of measurements and improving the accuracy of the recovery of the Earth’s gravity field. As a result of numerical simulation of the orbital motion of the multiple spacecraft constellation and solving the inverse problem of recovering the Earth’s gravitational field based on model measurements performed in this constellation, a multiple configuration with orbital parameters $h = 370$ km, $i = {90.5}^{\circ}$ and $h = 370$ km, $i = {70.0}^{\circ}$ , was found. Such a multiple constellation makes possible to increase both the spatial and temporal resolution of the Earth’s gravity field models with a significant refinement of zonal, sectorial and tesseral harmonics compared to the one-pair near-polar configuration.

Keywords

Earth’s gravity field, space gravimetry, multipair constellation, gravity field recovery, next generation gravity missions

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